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Claude Opus

AnthropicUnited StatesProprietaryProprietaryproprietarytext · vision

Top-tier reasoning model in the Claude family. Highest intelligence, slower and more expensive than Sonnet.

Release history (7)

  1. Opus 4.8
    Current stablestableMay 28, 2026
    claude-opus-4-8

    Current stable Opus.

  2. Opus 4.7
    previewJan 22, 2026
    claude-opus-4-7

    Latest preview Opus; 1M context option.

  3. Opus 4.6
    stableJan 15, 2026
    claude-opus-4-6

    Current stable Opus at training-cutoff time.

  4. Opus 4.5
    stableNov 12, 2025
    claude-opus-4-5-20251112

    Reasoning and tool-use upgrade.

  5. Opus 4.1
    deprecatedAug 5, 2025
    claude-opus-4-1-20250805

    Mid-series Opus refinement.

  6. Opus 4
    deprecatedMay 22, 2025
    claude-opus-4-20250514

    First of the Claude 4 series.

  7. Opus 3
    deprecatedMar 4, 2024
    claude-3-opus-20240229

    Original Opus, the first frontier-tier Claude.

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